cannot boot: mount /new_root: unknown filesystem type 'ext4

Thebotgame · 2022-02-02 13:09:40

Hey,

Not sure if I'm posting in the right forum.
But I had a working installation for a year but now,
when booting linux it says:

```
mount: /new_root: unkown filesystem type `ext4`.
You are now bing dropped into an emergency shell.
```

Do someone can help me fix it?

seth · 2022-02-02 14:09:15

Did you recently update the system? What kernel verision is booted?

uname -a

Thebotgame · 2022-02-02 14:47:23

I did and my kernel version is: Linux archiso 5.16.4-arch1-1 #1 SMP PREEMPT Sat, 29 Jan 2022 19:08:13 +0000 x86_64 GNU/Linux

seth · 2022-02-02 14:49:19

That's the installation iso???
I mean in the resacue shell of the failing boot.
You can use the iso to test the installed versions, though:

pacman --sysroot /mn -Qs linux # mount the root partition of the installed system to /mnt before this

Thebotgame · 2022-02-02 14:56:31

yup that the installation iso the shell doesn't let me type xD

and

local/alsa-lib 1.2.6.1-1
    An alternative implementation of Linux sound support
local/archlinux-appstream-data 20220107-1
    Arch Linux application database for AppStream-based software centers
local/archlinux-keyring 20220125-1
    Arch Linux PGP keyring
local/avahi 0.8+22+gfd482a7-3
    Service Discovery for Linux using mDNS/DNS-SD -- compatible with Bonjour
local/base 2-2
    Minimal package set to define a basic Arch Linux installation
local/bridge-utils 1.7.1-1
    Utilities for configuring the Linux ethernet bridge
local/efibootmgr 17-2
    Linux user-space application to modify the EFI Boot Manager
local/filesystem 2021.12.07-1
    Base Arch Linux files
local/iptables 1:1.8.7-1
    Linux kernel packet control tool (using legacy interface)
local/kdenlive 21.12.1-1 (kde-applications kde-multimedia)
    A non-linear video editor for Linux using the MLT video framework
local/keyutils 1.6.3-1
    Linux Key Management Utilities
local/kmod 29-1
    Linux kernel module management tools and library
local/lib32-alsa-lib 1.2.6.1-1
    An alternative implementation of Linux sound support (32 bit)
local/lib32-keyutils 1.6.3-1
    Linux Key Management Utilities (32-bit)
local/lib32-libxshmfence 1.3-2
    a library that exposes a event API on top of Linux futexes (32-bit)
local/lib32-util-linux 2.37.3-1
    Miscellaneous system utilities for Linux (32-bit)
local/libaio 0.3.112-2
    The Linux-native asynchronous I/O facility (aio) library
local/libcap-ng 0.8.2-6
    A library for Linux that makes using posix capabilities easy
local/libiec61883 1.2.0-6
    A higher level API for streaming DV, MPEG-2 and audio over Linux IEEE 1394
local/libimobiledevice 1.3.0-5
    Library that talks the protocols to support iPhone and iPod Touch devices on Linux
local/libraw1394 2.1.2-3
    Provides an API to the Linux IEEE1394 (FireWire) driver
local/liburing 2.1-1
    Linux-native io_uring I/O access library
local/libva 2.13.0-1
    Video Acceleration (VA) API for Linux
local/libxshmfence 1.3-2
    a library that exposes a event API on top of Linux futexes
local/linux 5.16.4.arch1-1
    The Linux kernel and modules
local/linux-api-headers 5.12.3-1
    Kernel headers sanitized for use in userspace
local/linux-zen 5.16.4.zen1-1
    The Linux ZEN kernel and modules
local/linux-zen-headers 5.16.4.zen1-1
    Headers and scripts for building modules for the Linux ZEN kernel
local/lsp-plugins 1.1.31-1 (ladspa-plugins lv2-plugins pro-audio vst-plugins)
    Collection of free plugins compatible with LADSPA, LV2 and LinuxVST
local/mdadm 4.2-1
    A tool for managing/monitoring Linux md device arrays, also known as Software RAID
local/ndctl 72.1-1
    Utility library for managing the libnvdimm (non-volatile memory device) sub-system in the Linux kernel
local/noisetorch 0.11.4-1
    Real-time microphone noise suppression on Linux.
local/nvidia 510.47.03-1
    NVIDIA drivers for linux
local/pacman-mirrorlist 20220116-1
    Arch Linux mirror list for use by pacman
local/playonlinux 4.3.4-4
    GUI for managing Windows programs under linux
local/python-distro 1.6.0-4
    Linux OS platform information API
local/python-evdev 1.4.0-3
    Python bindings for the Linux input subsystem
local/python-pyinotify 0.9.6-11
    Python module used for monitoring filesystems events on Linux platforms with inotify.
local/python2-distro 1.6.0-1
    Linux OS platform information API
local/timeshift 21.09.1-3
    A system restore utility for Linux
local/ulauncher 5.14.2-1
    Application launcher for Linux
local/util-linux 2.37.3-2
    Miscellaneous system utilities for Linux
local/util-linux-libs 2.37.3-2
    util-linux runtime libraries
local/v4l-utils 1.22.1-1
    Userspace tools and conversion library for Video 4 Linux
local/virt-install 3.2.0-4
    Command line tool for creating new KVM , Xen, or Linux container guests using the libvirt hypervisor

Last edited by Thebotgame (2022-02-02 15:05:11)

seth · 2022-02-02 15:09:29

I'll just go on a limb:
From the iso mount /mnt, check whether there're files in /boot (particularily vmlinuz-linux, check it: "file /mnt/boot/vmlinuz-linux" - tells you the version) and conditionally /mnt/boot (esp. if there's a vmlinuz-linux in the unmounted path and it's the 5.16 kernel) and then run "pacman --sysroot /mnt -S linux"
If there's an old kernel in the unmounted /mnt/boot and a new one in the mounted boot partition, you're likely booting from the root partition - in that case umount /mnt/boot again and install the kernel afterwards.

Thebotgame · 2022-02-02 15:19:20

error: could not open file /etc/mtab: No such file or directory
error: could not determine filesystem mount points
error: failed to commit transaction (unexpected error)
Errors occureed, no packages were upgrade.

seth · 2022-02-02 15:27:42

You did not mount the root partition to /mnt or tried to chroot but didn't mount /proc (ie. eg. didn't use arch-chroot)?
What did you find about the kernel versions on root and boot partition?

Thebotgame · 2022-02-02 15:35:11

kernel version: 5.16.4-arch1-1

seth · 2022-02-02 15:37:40

… Where?
In the root or the boot partition or both?

Thebotgame · 2022-02-02 15:40:41

root. idk how to check the boot

seth · 2022-02-02 15:42:29

lsblk -f

Thebotgame · 2022-02-02 15:43:45

and then like just show me the mounting points

seth · 2022-02-02 15:48:19

This is a list of the available block devices and if and where they're mounted and when I see that list, I can tell you whether and where your boot partition is and whether and where it's mounted…

Thebotgame · 2022-02-02 16:05:57

/mnt/boot

seth · 2022-02-02 16:13:59

If you cant get beyond posting random irrelevant stuff without any context, nobody here can help you.

V1del · 2022-02-02 16:14:39

You say that but what is actually mounted there? Post the output of that lsblk -f : https://wiki.archlinux.org/title/List_o … n_services

Which instructions did you follow to install Arch Linux?

Last edited by V1del (2022-02-02 16:15:36)

Thebotgame · 2022-02-02 16:19:26

NAME        FSTYPE   FSVER            LABEL       UUID                                 FSAVAIL FSUSE% MOUNTPOINTS
loop0       squashfs 4.0                                                                     0   100% /run/archiso/airootfs
sda                                                                                                   
??sda1      ntfs                      Local Disk  E24A33024A32D351                                    
sdb                                                                                                   
??sdb1                                                                                                
??sdb2      ntfs                                  6426B63C26B60F54                                    
sdc         iso9660  Joliet Extension ARCH_202202 2022-02-01-17-06-09-00                              
??sdc1      iso9660  Joliet Extension ARCH_202202 2022-02-01-17-06-09-00                     0   100% /run/archiso/bootmnt
??sdc2      vfat     FAT16            ARCHISO_EFI 8D66-4275                                           
nvme0n1                                                                                               
??nvme0n1p1 vfat     FAT16                        38C4-8F1E                                  0   100% /mnt/boot

Thebotgame · 2022-02-02 18:36:28

Solved it my boot was full that was all

Arch Linux

#1 2022-02-02 13:09:40

cannot boot: mount /new_root: unknown filesystem type 'ext4

#2 2022-02-02 14:09:15

Re: cannot boot: mount /new_root: unknown filesystem type 'ext4

#3 2022-02-02 14:47:23

Re: cannot boot: mount /new_root: unknown filesystem type 'ext4

#4 2022-02-02 14:49:19

Re: cannot boot: mount /new_root: unknown filesystem type 'ext4

#5 2022-02-02 14:56:31

Re: cannot boot: mount /new_root: unknown filesystem type 'ext4

#6 2022-02-02 15:09:29

Re: cannot boot: mount /new_root: unknown filesystem type 'ext4

#7 2022-02-02 15:19:20

Re: cannot boot: mount /new_root: unknown filesystem type 'ext4

#8 2022-02-02 15:27:42

Re: cannot boot: mount /new_root: unknown filesystem type 'ext4

#9 2022-02-02 15:35:11

Re: cannot boot: mount /new_root: unknown filesystem type 'ext4

#10 2022-02-02 15:37:40

Re: cannot boot: mount /new_root: unknown filesystem type 'ext4

#11 2022-02-02 15:40:41

Re: cannot boot: mount /new_root: unknown filesystem type 'ext4

#12 2022-02-02 15:42:29

Re: cannot boot: mount /new_root: unknown filesystem type 'ext4

#13 2022-02-02 15:43:45

Re: cannot boot: mount /new_root: unknown filesystem type 'ext4

#14 2022-02-02 15:48:19

Re: cannot boot: mount /new_root: unknown filesystem type 'ext4

#15 2022-02-02 16:05:57

Re: cannot boot: mount /new_root: unknown filesystem type 'ext4

#16 2022-02-02 16:13:59

Re: cannot boot: mount /new_root: unknown filesystem type 'ext4

#17 2022-02-02 16:14:39

Re: cannot boot: mount /new_root: unknown filesystem type 'ext4

#18 2022-02-02 16:19:26

Re: cannot boot: mount /new_root: unknown filesystem type 'ext4

#19 2022-02-02 18:36:28

Re: cannot boot: mount /new_root: unknown filesystem type 'ext4

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